Top off your CamelBak water bottle with Pak Cap's hidden hauling capability. Conveniently store snacks, vitamins, or any other small essentials in the top half of the twist-to-open cap. Leak-proof when closed and easy to clean. Compatible with MultiBev, Chute Mag, Eddy+, Carry Cap, and Hot Cap vessels. FEATURESStorage: Stow snacks or small essentialsLeak-free: Completely leak-proof when closedEasy to Carry: Comfortable carry handleEasy to Clean: Dishwasher safeDrink Clean: BPA, BPS, and BPF freeUniversal Cap: Compatible with MultiBev, Chute Mag, Eddy+, Carry Cap, and Hot Cap vessels